Journal article

+ 1 other files

Formation of silver nanoparticles by electron transfer in peptides and c‐cytochromes

  • Vasylevskyi, Serhii I. Department of Chemistry, University of Fribourg, Switzerland
  • Kracht, Sonja Department of Chemistry, University of Fribourg, Switzerland
  • Corcosa, Paula Department of Chemistry, University of Fribourg, Switzerland
  • Fromm, Katharina M. Department of Chemistry, University of Fribourg, Switzerland
  • Giese, Bernd Department of Chemistry, University of Fribourg, Switzerland
  • Füeg, Michael Department of Chemistry and Biochemistry, University of Bern, Switzerland
Show more…
    01.01.2017
Published in:
  • Angewandte Chemie International Edition. - 2017, vol. 56, no. 21, p. 5926-5930
English The reduction of Ag⁺ ions to Ag⁰ atoms is a highly endergonic reaction step, only the aggregation to Agn clusters leads to an exergonic process. These elementary chemical reactions play a decisive role if Ag nanoparticles (AgNPs) are generated by electron transfer (ET) reactions to Ag⁺ ions. We studied the formation of AgNPs in peptides by photoinduced ET, and in c-cytochromes by ET from their Fe²⁺/hemes. Our earlier photoinduced experiments in peptides had demonstrated that histidine prevents AgNP formation. We have now observed that AgNPs can be easily synthesized with less-efficient Ag⁺-binding amino acids, and the rate increases in the order lysine
Faculty
Faculté des sciences et de médecine
Department
Département de Chimie
Language
  • English
Classification
Biology
License
License undefined
Identifiers
Persistent URL
https://folia.unifr.ch/unifr/documents/305514
Other files

Statistics

Document views: 8 File downloads:
  • vasylevskyi_et_al_2017_formation.pdf: 2
  • fro_fsn_sm.pdf: 0